Detailed answer

Isotretinoin, a medication derived from vitamin A, is primarily known for its use in treating severe acne. While it is not typically the first choice for rosacea treatment, it can be considered for severe cases that have not responded well to other therapies. Isotretinoin works by reducing the production of oil in the skin and has anti-inflammatory properties, which can help alleviate some of the symptoms of rosacea such as redness and inflammation. However, it is important to note that isotretinoin should only be prescribed and monitored by a dermatologist due to its potential side effects and the need for careful monitoring of liver function and blood lipid levels during treatment.